Prefabricated sliding and swinging door structure



J. P. EBY

Aug. 16, 1966 PREFABRICATED SLIDING AND SWINGING DOOR STRUCTURE 4 Sheets-Sheet 1 Filed Nov.

JOHN P. EBY

INVENTOR.

BY m

ATTORNEYS v J. P. EBY

PREFABRICATED SLIDING AND SWINGING DOOR STRUCTURE Filed Nov. l, 1963 2 a @lo mm. m e Em m u SPW m m f- M N .wm/. H m /mm IM S 4| v W FIG J. P. EBY

Aug. 16, 1966 PREFABRICATED SLIDING AND SWINGING DOOR STRUCTURE 4 Sheets-Sheet 3 Filed Nov.

JOH N P. E BY INVENTGR.

A TTORNEYS J. P. EBY

Aug. 16, 1966 PREFABRICATED SLIDING AND SWINGING DOOR STRUCTURE 4 Sheets-Sheet 4 Filed Nov. l, 1963 FIG-IO J O H N P. E BY INVENTOR.

Mg @ya ATTORNE YS United States Patent O 3,266,189 PREFABRICATED SLIDING AND SWINGIN G DGOR STRUCTURE John P. Eby, 7426 230th SW., Edmonds, Wash. Filed Nov. 1, 1963, Ser. No. 320,700 S Claims. (Cl. 49-152) This invention relates to a new and useful concept in a prefabricated sliding and swinging door structure and more particularly to an automatically operated prefabricated sliding door structure in which the doors are supported in a sliding carrier frame and in which the doors are pivote-d to swing open for emergency purposes.

Most individuals today are familiar with the automated door structures currently found in more modern and in renovated buildings. Such automated doors are particularly apparent in shopping centers and supermarkets and other businesses having a high volume of patronage. Up to the present time the doors while automatically operated have been of the swinging type. Generally such an installation involves either a single or double swinging door for ingress plus either a single or double swinging door for egress. An inherent disadvantage of swinging doors is that the space required is greater than that which is required for a sliding door structure. It is generally recognized that a swinging door will require two and one-half times as much space on the side to which it swings as compared to the space require by the sliding door. The swinging doors also have the disadvantage of hitting people when they swing open.

The sliding and swinging door structure of this invention has been designed to overcome the disadvantages of conventional automated swinging doors. In brief, this automated sliding door structure comprises an upstanding, generally rectangular frame which is prefabricated to be set into an opening provided by the contractor in the construction of a building or to replace outmoded door structures in existing buildings. In effect, all that is required of the contractor is that he provide an opening of proper dimensions into which the over-all frame of this door may be positioned. The outer section of the frame, which is effect is an inverted U structure, contains the door operator which may be electric, hydraulic or pneumatic according to the preference of those skilled in the art. The operator is generally located above the doors in space designed especially for said operator. Spaced inwardly from the outer depending legs of the main frame are secondary or inner depending leg frame members which between them deiine the actual door opening. Between the inner leg members and the outer depen-ding legs of the main frame are dened wells or pockets into which doors will slide. Each of the doors has a carrier frame assembly mounted on rollers which are overhead mounted on a track in the operator space above the doors and pockets. The doors are provided with pivot means to sw-ing outwardly for emergency purposes in order to satisfy code requirements.

Accordingly, it is a prime object of this invention to provide a prefabricated sli-ding and swinging door structure which 'is automatically actuated to slide into a pocket as an individual approaches the door.

Another object of this invention is to furnish a prefabricated sliding and swinging door structure which has a break-away swing feature to satisfy building codes for safety purposes so that the more advantageous sliding type principle will be fully accepted.

Still another object of this invention is to supply an automated Prefabricated slid-ing and swinging door structure which lis made available as a single unit and which combines doors, operator and pockets thus eliminating separate construction and labor time in the construction of wells or pockets for the sliding doors.

3,266,189 Patented August 16, 1966 ICC Yet another object of thisinvention is to provide an automated Prefabricated single unit sliding and swinging door structure which because of its completely prefabricated and assembled availability reduces installation time to provide a saving for those employing the doors.

A further object of this invention is to supply a prefabricated integrated or single un-it sliding and swinging door structure which has a pivot structure in the carr-ier frame for the doors permitting rapid removal, convenient maintenance and cleaning and which uses a simple door pivot feature in order to reduce costs and to simplify the over-all unit.

Still a further object of this invention is to supply a sliding and swinging door structure in which each door carrier frame is carried and supported at two points and in which equal forces are applied to each of the door carrier frames for opening and closing to reduce the stresses and forces on the carrier frames.

A further object of th-is invention is to provide a prefabricated single unit sliding and swinging door structure which contains a swinging panel for each of the door wells, thus allowing easy access for cleaning and for maintenance.

An even further object of this invention is to provide a single, integrated, prefabricated sliding and swinging door structure which is able to employ standard forms and parts in its unit components.

Still another object of this invention is to provide a prefabricated single unit sliding and swinging door structure which is simple in design, inexpensive to produce, easily maintained and highly durable and dependable.

These, together with other objects and advantages which will become subsequently apparent, reside in the details of the constructionpand` operation of this invention as more fully hereinafter described and claimed. Reference will be had to the accompanying drawings, forming a part of this disclosure, wherein like numbers will refer to like parts throughout, and in which:

IFIGURE l is a side elevational view of this structure showing generally the over-all appearance of the supporting frame structure, the relationships of the components to each other and their various locations within the unit;

[FIGURE 2 is a top plan view in cross section taken along the line 2 2 of FIGURE 1 showing generally diagrammat-ically the break-away swing feature of the slid` ing doors and the swing of the panels on the wells;

FIGURE 3 is an enlarged partially broken away cross sectionview taken along the line 3 3 of FIGURE 1 and showing in` greater detail the position of the operator, the `configurations of the Various frame components, and the nature of the way in which the doors and their carrier frames are hung on the operator track;

l FIGURE 4 is a partial elevational view of one of the sliding doors and its carrier frame.

FIGURE 54 is a partial cross section view of the locking feature of the door on the upper member of the door carrier frame and the manner in which the carrier frame attaches to t-he hanging brackets;

FIGURE 6 is .a partial plan cross section view taken along the line 6 6 of FIGURE 1 showing in greater Idetail the location of the various frame components with relation to each other and further details of the conligurations of said components;

FIGURE 7 is a partial elevational view showing additional features of the break-away lock feature of the door on the carrier frame;

FIGURE 8 is a partial plan view of the details of the break-away lock feature of the door;

FIGURE 9 is a front elevational, partial cross section view taken along the lines 9 9 in both FIGURES 3 2 and 5 showing additional details of the break-away lock feature;

FIGURE is a partial perspective view of the pivot feature for the door in the top corner of the carrier frame showing the simple nature and the adjustability feature of such pivot;

FIGURE 1l is a partial perspective view showing the bottom pivot for the door;

FIGURE 12 is a partial elevational View of the upper, forward area of the door and carrier showing an alternative, two-direction break-away feature for the door; and

FIGURE 13 is a partial edge elevational view taken along the line 13-13 of FIGURE 12 showing further detail of the elements in FIGURE 12.

Referring now to the drawings it will be seen that the frame structure, generally designated by the number 10 and exclusive of the doors and operator components, is of a generally inverted U shape having top or upper horizontal frame component 1,2 and depending outside leg members 14 and 16. It wil-l be noted particularly with reference to FIGURES 3k and 6 that the outside frame members 12, 14 and 16 are made up of generally channel shaped standard metal components in which two relatively shallow channel members are joined together at the two adjoining legs thereof either by riveting, weld- -ing or other conventional means. If desired channel members 18 may be covered with conventional plates 20. The particular frame configurations shown are employed to give a frame depth that could not otherwise be achieved by conventional or standard materials suited to this relatively light frame. Thus, the precise cross sectional design of the frame members is of no great import so long as it meets strength and other building and architectural specifications.

Spaced below and extending horizontally entirely across the main frame structure, are the intermediate main frame members 22 and 24. The exterior intermediate frame member 22, in this particular unit, as can be seen Iby reference to FIGURE 3, is smaller than the interior intermediate frame member 24 as measured in horizontal dimensions. Regardless of dimensions, however, a space or channel 216 is left between the two intermediate frame members 22 and 24 in order to define an unobstructed elongated channel in which the hanging brackets, the upper carrier frame member, and the doors are accommodated. The intermediate exterior and interior frame members 22 and 24 as mentioned above extend entirely across the main outer frame and are attached to the outer depending legs 14 and 16. Spaced inwardly from eaoh of the outer depending legs 14 and 16 and secured to the intermediate horizontal frame members 22 and 24 are the intermediate depending legs 30', 32, 34, and 36. Again the dimensions of the two exterior legs 30 yand 34 will be consistent lwith the dimensions of the outer intermediate horizontal frame member 22. The intermediate depending frame members 30 and 32 are spaced from each other to define a carrier frame and a door channel 38 while the opposed depending frame members 34 and 36 are also spaced from each other in the same way to define door and carrier frame channel 40. It

will be observed from the drawings that the intermediate depending frame members are spaced about one fourth the distance from the nearest outer leg me-mber to the other outer depending leg member. Thus the door space is located between the depending intermediate leg members.

The operator for the doors is located in the area between the upper main frame member 12 and the intermediate horizontal frame members 22 and 24, The operaltor, the details of which are not essential to an understanding of this invention and which is generally shown by the number 42, is attached to a supporting plate 44 of roughly Z-shape which is secured by its leg 46 to the upper frame -member 12 by appropriate bolts 48 or welding or other conventional securing means. The lower end of the plate 44 is secured to the outer intermediate horizontal frame member 22 as by bolts 52. The track 54 is supported by brackets 56 at appropriate securing means S8. If preferred the plate 44 could be a series of narrow Z-shaped straps designed to serve the same function as the plate itself. Obviously the manner of supporting the operator and other door actuating elements may vary and thus is set forth only to illustrate environmental structure for the invention.

The door carrier frame is in effect made up of two sides of a generally rectangular frame. The carrier frame is comprised of an upper or horizontal carrier frame member, generally designated by the number 60, and a vertical component, general-ly shown by the number 62. Upper carrier member is preferably constructed in the form of a double web channel. The two webs 64 are separated to define a rectangular void or space running through the length of the upper carrier member. Other cross sectional configurations for the upper channel member may well be employed. At two spaced apart points each of which is relatively close to an end of the upper carrier member 60 there are hangar bolts 74 to support the carrier frame. The hangar bolts extend through the middle web 64, which is rigidized with and supplied additional support by the reinforcing plate 76. The walls and 72 of the upper carrier member 60I extend in the manner of channels beyond the middle web 64. The vertical carrier member 62 is securely and rigidly attached to one end of the upper carrier frame member to provide additional support for the door.

The carrier frame is attached by hangar bolts 74 tov the hangar bracket Sti. The hanger bracket can be seen by reference to FIGURE 3 to be an elongated L- shaped bar or strap on which the lower short horizontal arm attaches to the hangar bolts. The bracket 80 jogs horizontally from the bolt head and then extends upwardly. At the upper end of the bracket 80 is mounted the track roller 82. The two hangar brackets 80 may be further strengthened by the addition of an interconnecting horizontal rigidizing bar 84. The guide roller S6 is also mounted on bracket 80 to prevent the track rollers 82 from jumping track 54.

The door frames, generally shown by the number 90, are preferably made of standard, well-known door materials. Paneling may be glass, as shown, or of opaque material. The `doors are pivotally mounted by pivot means connected between the door frame and the upper carrier frame member and between the door frame and a plate means extending outwardly from the bottom end of the vertical carrier member. The pivots as at 92 and 94 are coaxially aligned. It has been found preferable to mount the pivot structure at the top and bottom of the door rather than at the back edge thereof. The reasons for placing the pivots at the top and bottom are to avoid the complexities of installing the door by hinge means associated with the door rear frame member and the vertical carrier means.

The door has the upper and lower frame members 92 and 94, and rear and forward vertical frame members 96 and 98. In those instances in which glass is used for panelng a center horizontal frame member 100 may also be included. The pivot means 92 and 94 are shown more specifically in FIGURES 10 and 1l. The bottom pivot 94 is joined to the plate 63 at the lower end of the vertical carrier frame member 62 and may be of any desired shape or form since the door will normally be placed on the bottom pivot and the adjustment made at the upper end. However, the upper pivot 92, which will normally be a standard item readily available on the market, has a simple adjustability feature permitting the pivot member 92 t0 be retracted from or extended into a socket so that the door may be easily removed. The adjusting screw 93 may be exposed by swinging the door outwardly, thereby permitting a screwdriver to turn said adjusting screw 93. By means which are not essential to an understanding of this invention the pivot 92 may be either extended into or withdrawn from its appropriate socket means in the upper carrier frame member 60.

Another feature of this invention is the break-away feature which aids to hold the doors in place during normal sliding operation. The break-away lock features is such that with extra pressure the door may be opened around its pivots for occasions when it is desired to leave the doors open and also for emergency purposes. The upper edge of member 92 of the door frame contains a horizontally disposed plate 102 held in place between the two sides of said frame member 92 by screws 104. The bottom side of the plate is provided with iat least one spring loaded detent or bullet lock 106. In addition, a rectangular opening 108 is formed on `the interior surface of the upper frame member 92 to extend slightly below the bottom of the plate 102 to expose the bullet locks or catches 106. It will be seen by reference to FIGURE 8 that the elongated opening 108 in the vertical side of frame member 92 is also formed into plate 102 to define an opening or recess space 110 in the plate. It will be noted by reference to FIGURE 5 that the lower inner portion of top carrier member 60 is provided with an L-shaped, rela-tively short length of angle material to provide break-away bracket 112. The break-away bracket 112 is attached by its upper or vertical leg to interior wall 70 of the upper carrier member. It extends downwardly and slightly below the bottom surface or web 66 of said carrier member 60. The horizontal leg of the break-away bracket 112 is designed to coincide with opening 108 in the door so that the horizontal leg slides into the opening under the plate 102 to engage with bullet catches 106. Appropriate `cavities are formed in the breakaway bracket to receive the bullet catches 106. In this way not only is a break-away feature provided but a break-away feature is accomplished in which only a slight amount of added pressure on the door can force the door to swing outwardly around its pivots by overcoming the resistance of the spring loaded bullet catches 106. Because of the recess 110 in plate 102 the vertical segment of breakaway bracket 112 is allowed to ride far enough towards the center line of the door so that the door is held liush with its carrier frame members.

A further feature of this sliding and swing door structure is that a micro-switch 114, having actuating button 116 is in contact at all times with the plate 102. If for any reason the door is swung about its pivots the microswitch interrupts the electrical source to the operator and the doors will not slide. To complete a description of this invention it need only be mentioned that the paneling or glass panes have fname members 118 within the confines of the space defined by the main frame members and it is within these panel frames 118 that the panel glass 120 is inserted and mounted. The interior side of this invention has swinging panels as characterized by frame members 122 carrying glass frames 124. FIGURE l will indicate that the interior panel members are pivotally attached to the outer depending leg members 14 and 16 by virtue of pivots as at 126, 128, 130, and 132. The lower bottom-most corners of the interior swinging panels are also mounted on plates extending from the lower ends of the outer depending leg members 14 and 16. Thus, the nature of the pivot for the panels is quite similar to the pivots for the doors. The panels are made pivotal on the interior to permit easy access to the door wells or pockets for cleaning and maintenance purposes.

FIGURES 12 and 13 represent an alternative form of the break-away lock feature. Instead of breaking open about its pivots in only one direction the form of the break-away in FIGURES 12 and 13 allows the doors to swing open either to the inside or to the outside. The .angle bracket 142, having lower horizontal leg 146 is mounted in the end of carrier 60 as by employing mounting plate 140 and screws 144. The upper inner corner edge of the door is provided with slot 99 just below the top edge. Said slot 99 is cut entirely through the door, the top of which slot is defined by reinforcing plate 143 anchored in the upper portion of door frame member 92 by screws or other securing devices 150. The upper surface of the ho-rizontal leg 146 is rounded slightly, as seen in FIGURE l2, so as to eliminate any possibility that the leg 146 and slot 99 would not mesh. Obviously the angle bracket 142 lends support to the door on the carrier frame.

The precise details of the construction of the double break-away feature are not critical since those skilled in the art will recognize other methods of installation. Again, however, the breakaway lock will require a spring loaded detent latch 154 having housing 152 for holding the door in place on the carrier. In this embodiment the latching mechanism is installed and ope-rates from below the angle bracket. Other ways of installing the so-called latches or bullet -catches will be readily conceived. It will be appreciated that at night one of the doors will be locked with a barrel bolt necessitating swing use of the other door, This double break-away permits the door to be pushed open after it is unlocked, whereas the one direction break-away requires means for pulling the door when being opened.

It is emphasized that the particular structural crosssectional configurations of the various frame members are considered to be optional. In addition the breakaway features provided by the bracket 112 and the spring loaded bullet catches 106 also an additional support feature for the doors so that there is no sagging of the doors in their mounting in the carrier frame. The building entrance will have the usual approach mat 134 which when stepped upon triggers the door actuating mechanism to slide the doors open. It should also be pointed out that the single unit construction of this over-all door installation is and has been a distinct advance in the art. In addition guide Irollers 136 may be supplied to guide the carrier frames and doors as they move in and out of the pockets.

The foregoing is considered as illustrative only of the principles of this invention. Numerous modifications and changes will occur to those skilled in the art, and hence is not desired to limit the invention to the -precise construction and operation shown and described. Accordingly, all suitable modifications and equivalents may be resorted to which fall within the scope of the invention.

What is claimed is:

1. A prefabricated sliding and swinging door structure comprising: (a) an elongated generally horizontal upper main frame member, (b) an intermediate horizontal frame member generally parallel to, spaced below and connected at its ends to said upper frame member, the distance between said upper main and said intermediate horizontal frame member defining an operating area for a door actuating mechanism, (c) a pair of spaced-apart intermediate generally Vertical frame members attached to and depending inwardly from the ends of said intermediate horizontal frame member and which between them define a door area, said intermediate vertical frame members and said intermediate horizontal frame member being divided in their construction to define an unobstructed carrier frame and door channel between the faces of said divided frame members, (d) a track means disposed above said intermediate horizontal frame member generally in alignment with said channel, (e) a -pair of carrier frames with each carrier frame including a horizontally disposed upper carrier member and having attached to the outer end -thereof a vertical carrier member, each said carrier frame being attached to brackets extending through said channel means with said brackets having rollers supported on said track, (f) a door for each carrier member, each said door being coaxially pivotally connected at its top to the upper carrier member and at its bottom to a plate secured to the lower end of said vertical carrier member, (g) an actuating mechanism supported in said operating speeds-a i area adapted to be operably connected to said carrier frames for sliding said carrier frames in and out of said door area, and (h) break-away lock means for each carrier frame and door including an angle bracket attached to the inner end of and extending below each upper carrier member and a slot extending entirely through the door mounted in said carrier for receiving said angle bracket to permit the door to pivot in either direction, and resilient break-.away latching means for resiliently and detachably engaging said door to said angle bracket.

2. A prefabricated sliding and swinging door structure, comprising: (a) an inverted U-shaped outer main frame having an elon-gated generally horizontal upper main frame member and a generally vertically disposed leg member attached to and depending from each end thereof, (b) an intermediate horizontal frame member generally parallel to and spaced below said upper frame member, the distance between said upper main and said intermediate horizontal frame member defining an operating area for a door actuating mechanism, (c) a pair of intermediate generally vertical frame members attached to and depending inwardly from the ends of said intermediated horizontal frame member and each of which is spaced inwardly from an outer depending leg member to define a pocket space and between them also to define a door area, said intermediate vertical frame members and said intermediate horizontal frame member being divided in their construction to define an unobstructed carrier frame and door channel, (d) a track means disposed above said intermediate horizontal frame member generally in alignment with said channel, (e) a pair of carrier frames with each carrier frame including a horizontally disposed upper carrier member and having attached to the pocket end thereof a vertical carrier member, each said carrier frame being 4attached to brackets extending through said channel means with said brackets having rollers supported on said track, (f) a door for each carrier member, each said door being mounted on coaxial'ly aligned pivots at its top to the upper carrier member and at its bottom to a plate secured to the lower end of said vertical carrier member, (g) an actuating mechanism supported in said operating area adapted t-o be operably connected to said carrier frames for sliding said carrier frames in and out of said pocket spaces and said door area, and (h) a two direction break-away lock means for each carrier frame and door including an angle bracket attached to the inner end of and extending below each upper carrier member, and a slot extending through the door mounted in said carrier for receiving said angle bracket and resilient break-away latching means lfor resiliently and detachably engaging said door to said angle bracket.

3. A prefabricated sliding and swinging door structure, comprising: (a) an inverted U-shaped outer main frame having an elongated generally horizontal upper main frame member and a generally vertically disposed leg member attached to and depending from each end thereof, (b) an intermediate horizontal frame member generally parallel to and spaced below said upper frame member, the distance between said upper main and said intermediate horizontal frame member defining an operating area for a door actuating mechanism, (c) a pair of intermediate generally vertical frame members attached to and depending inwardly from the ends of said intermediated horizontal frame member and cach of which its spaced :inwardly irom an outer depending leg member to define a pocket space and between them also to define a door area, said intermediate vertical frame members and said intermediate horizontal frame member being divided in their construction to define an unobstructed carrier frame and door channel, (d) a track means disposed above said intermediate horizontal frame member generally Iin alignment with said chan-nel, (e) a pair of carrier frames each of which includes la horizontally disposed upper carrier member and having attached to the pocket end thereof a vertical carrier member, each f said carrier frame'being attached to hangar brackets eX- tending through said channel means with said brackets having rollers supported on said track, (f) a door for each carrier member, each said door being pivotally connected at its top to the upper carrier member land at its bottom to a plate secured to the lower end of said vertical carrier member, (g) an actuating mechanism supported in said operating area adapted to be operably connected to said carrier frames for moving said carrier frames in and out of said pocket spaces and said door area, and (h) break-away lock means for each carrier frame and door including an angle bracket attached to the inner er1-d yof and extending below each uppercarrier member, and a slot in the door mounted in said carrier for receiving said angle bracket and resilient break-away latching means for resiliently and detachably engaging said door to said angle bracket.

4. A prefabricated sliding and swinging door structure comprising: (a) an inverted U-shaped outer main frame having an elongated generally horizontal upper lmain frame Imember and a generally vertically 'disposed leg member attached to and depending from each end thereof, (b) an intermediate horizontal frame member generally parallel to and spaced below said upper frame member, the distance between said upper main and said intermediate horizon-tal frame member defining an operating area for a door actuating mechanism, (c) a pair of intermediate generally vertical frame members attached to and depending inwardly from the ends of said intermediate horizontal frame member and each of which is spaced inwardly from an outer depending leg member to define a pocket space and between them also to define a door area, said intermediate vertical frame members and said intermediate horizontal frame member being divided in their construction to define an unobstructed carrier frame and door channel, (d) a track means disposed above said intermediate horizontal frame member generally in alignment with said channel, (e) a pair of carrier frames with each carrier frame including a horizontally disposed upper carrier member and having attached to the pocket end thereof a vertical carrier member, each said carrier frame being attached to brackets extending through said channel means with said brackets having rollers supported on said track, (f) a door for each carrier member, each said door being pivotally connected at its top to the upper carrier member and at its bottom to a plate secured to the lower end of said vertical carrier member, (g) an actuating mechanism supported in said operating area adapted to be operably connected to said carrier frames for moving said carrier frames in and out of said pocket spaces and said door area, and (h) break-away lock means for each carrier frame and door including an angle bracket attached to the inner end of and extending below each upper carrier member, and a slot in the door mounted in said carrier for receiving said angle bracket and resilient biasing means for resiliently and detachably engaging said door to said angle bracket.

S. A prefabricated sliding and swinging door structure, comprising: (a) an inverted U-shaped outer main frame having a generally horizontal upper main frame member and a generally vertically disposed leg member attached to and depending from each end thereof, (b) a pair of intermediate spaced-apart horizontal frame members generally parallel to and spaced below said upper main frame member, the distance between said upper main and said intermediate horizontal frame members defining an operating area for a door actuating mechanism, said spaced apart horizontal members defining a door and carrier frame channel means therebetween, (c) a first and second pair of intermediate generally vertical frame members :attached to and depending inwardly from the ends of said spaced apart intermediate horizontal frame members and spaced inwardly from each outer depending leg member to define pocket spaces and between them also to define a door area, each said rst and second pair of vertical iirame members also ybeing spaced from leach other Ito define a door and carrier frame channel, (d) a track means disposed above said intermediate horizontal frame members generally in alignment With the channel means, (e) a pair of carrier frames with each carrier frame including a horizontally disposed upper carrier member and having attached to the outer end thereof a vertical oanrier member, each .said canrier frame being attached to brackets extending through the channel means with said brackets having rollers supported on said track, (f) a door for each carrier member, each said door being pivotally connected at its top to the upper carrier member and at its bottom to a plate secured to the lower end of said vertical carrier member, (g) an actuating mechanism in said 4operating area adapted to be operably connected to said `carrierr inam'es oir sliding said carrier frames in and out of said pocket spaces and said door area, and (h) break-away lock means for each carrier References Cited by the Examiner UNITED STATES PATENTS 1,085,065 1/1914 Speicher 20-19 2,299,573 10/ 1942 Fairhurst 20e-19 2,565,383 8/1951 Linebaugh 20-19 3,136,538 6/1964 Dimmitt et al. 20--19 X REINALDO P. MACHADO, Primary Examiner.

HARRISON R. MOSELEY, Examiner.

K. DOWNEY, Assistant Examiner. 

1. A PREFABRICATED SLIDING AND SWINGING DOOR STRUCTURE COMPRISING: (A) AN ELONGATED GENERALLY HORIZONTAL UPPER MAIN FRAME MEMBER, (B) AN INTERMEDIATE HORIZONTAL FRAME MEMBER GENERALLY PARALLEL TO, SPACED BELOW AND CONNECTED AT ITS ENDS TO SAID UPPER FRAME MEMBER, THE DISTANCE BETWEEN SAID UPPER MAIN AND SAID INTERMEDIATE HORIZONTAL FRAME MEMBER DEFINING AN OPERATING AREA FOR A DOOR ACTUATING MECHANISM, (C) A PAIR OF SPACED-APART INTERMEDIATE GENERALLY VERTICAL FRAME MEMBERS ATTACHED TO AND DEPENDING INWARDLY FROM THE ENDS OF SAID INTERMEDIATE HORIZONTAL FRAME MEMBER AND WHICH BETWEEN THEM DEFINE A DOOR AREA, SAID INTERMEDIATE VERTICAL FRAME MEMBERS AND SAID INTERMEDIATE HORIZONTAL FRAME MEMBER BEING DIVIDED IN THEIR CONSTRUCTION TO DEFINE AN UNOBSTRUCTED CARRIER FRAME AND DOOR CHANNEL BETWEEN THE FACES OF SAID DIVIDED FRAME MEMBERS, (D) A TRACK MEANS DISPOSED ABOVE SAID INTERMEDIATE HORIZONTAL FRAME MEMBER GENERALLY IN ALIGNMENT WITH SAID CHANNEL, (E) A PAIR OF CARRIER FRAMES WITH EACH CARRIER FRAME INCLUDING A HORIZONTALLY DISPOSED UPPER CARRIER MEMBER AND HAVING ATTACHED TO THE OUTER END THEREOF A VERTICAL CARRIER MEMBER, EACH SAID CARRIER FRAME BEING ATTACHED TO BRACKETS EXTENDING THROUGH SAID CHANNEL MEANS WITH SAID BRACKETS HAVING ROLLERS SUPPORTED ON SAID TRACK, (F) A DOOR FOR EACH CARRIER MEMBER, EACH SAID DOOR BEING COAXIALLY PIVOTALLY CONNECTED AT ITS TOP TO THE UPPER CARRIER MEMBER AND AT ITS BOTTOM TO A PLATE SECURED TO THE LOWER END OF SAID VERTICAL CARRIER MEMBER, (G) AN ACTUATING MECHANISM SUPPORTED IN SAID OPERATING AREA ADAPTED TO BE OPERABLY CONNECTED TO SAID CARRIER FRAMES FOR SLIDING SAID CARRIER FRAMES IN AND OUT OF SAID DOOR AREA, AND (H) BREAK-AWAY LOCK MEANS FOR EACH CARRIER FRAME AND DOOR INCLUDING AN ANGLE BRACKET ATTACHED TO THE INNER END OF AND EXTENDING BELOW EACH UPPER CARRIER MEMBER AND A SLOT EXTENDING ENTIRELY THROUGH THE DOOR MOUNTED IN SAID CARRIER FOR RECEIVING SAID ANGLE BRACKET TO PERMIT THE DOOR TO PIVOT IN EITHER DIRECTION, AND RESILIENT BREAK-AWAY LATCHING MEANS FOR RESILIENTLY AND DETACHABLY ENGAGING SAID DOOR TO SAID ANGLE BRACKET. 